Answer:
the answer is C
Explanation:
So, the formed image will be real and inverted.
The force of attraction between two objects can be illustrated using Newton's Law of Universal Gravitation.
The relation between the different parameters is shown in the attached image.
Now, from the relation, we can deduce that the force between the two objects is directly proportional to the masses of the two objects.
This means that, if the mass of one object is doubled, then the force between the two objects will also be doubled.
Answer:
Potential energy of book = 7.5 J
Explanation:
Given:
Weight of book = 5 N
Height of shelf = 1.5 meter
Find:
Potential energy of book
Computation:
Weight = Mass x Acceleration of gravity
Mass x Acceleration of gravity = 5 N
Potential energy = Mass x Acceleration of gravity x Height
Potential energy of book = Mass x Acceleration of gravity x Height
We know that;
Mass x Acceleration of gravity = 5 N
So,
Potential energy of book = 5 x 1.5
Potential energy of book = 7.5 J
Answer:
![\Delta V = 0.053 A](https://tex.z-dn.net/?f=%5CDelta%20V%20%3D%200.053%20A)
Explanation:
Electric field in a given region is given by equation
![E = \frac{A}{r^4}](https://tex.z-dn.net/?f=E%20%3D%20%5Cfrac%7BA%7D%7Br%5E4%7D)
as we know the relation between electric field and potential difference is given as
![\Delta V = -\int E. dr](https://tex.z-dn.net/?f=%5CDelta%20V%20%3D%20-%5Cint%20E.%20dr)
so here we have
![\Delta V = - \int (\frac{A}{r^4}) .dr](https://tex.z-dn.net/?f=%5CDelta%20V%20%3D%20-%20%5Cint%20%28%5Cfrac%7BA%7D%7Br%5E4%7D%29%20.dr)
![\Delta V = \frac{A}{3r_1^3} - \frac{A}{3r_2^3}](https://tex.z-dn.net/?f=%5CDelta%20V%20%3D%20%5Cfrac%7BA%7D%7B3r_1%5E3%7D%20-%20%5Cfrac%7BA%7D%7B3r_2%5E3%7D)
here we know that
and ![r_2 = 2.89 m](https://tex.z-dn.net/?f=r_2%20%3D%202.89%20m)
so we will have
![\Delta V = \frac{A}{3}(\frac{1}{1.71^3} - \frac{1}{2.89^3})](https://tex.z-dn.net/?f=%5CDelta%20V%20%3D%20%5Cfrac%7BA%7D%7B3%7D%28%5Cfrac%7B1%7D%7B1.71%5E3%7D%20-%20%5Cfrac%7B1%7D%7B2.89%5E3%7D%29)
so we will have
![\Delta V = 0.053 A](https://tex.z-dn.net/?f=%5CDelta%20V%20%3D%200.053%20A)